The guy that had been minding his own business walking in circles in his 'turf' would not be best pleased by a brat knocking into him again. Though he didn't even flinch or stagger standing stalwart as he looked down at Kei, He didn't say much until he was directly addressed at which point a low annoyed growl could be heard from the mans throat. "Vending machine is part of my territory, if your just going to keep walking about, what you expect? People come and go from my territory in happiness from taking from my vending machine. Are you insulting my territory? Are you insulting me?" The man would say reaching a foregone conclusion without any of Kei's Input.

"I don't like people that insult me. I don't like you." He'd say as he would reach behind himself to pull out a standard duel disk. "You, no, look all that tough enough. I'll beat you up good and proper, smack your head and show you how to get back in line." The man was certainly speaking rather aggressively. Did he not even consider Kei's age into account? He sounded perfectly fine with beating on a kid without remorse. 

"We Duel now, I beat you, You restock Vending Machine." He said as not letting Kei get passed until they duelled. That much was for certain. Though did he really have to pick his nose like some sort of troll or ogre while waiting for Kei's response?